const date = new Date();
date.getTime();

const reg = /abc/
reg.test('abc');

Math.pow(2, 3)


interface IPerson3 {
  name: string;
  age: number;
}

let minyuan:IPerson3 = {
  name: 'minyuan',
  age: 18
}

type IPartialPerson = Partial<IPerson3>
let partialPerson:IPartialPerson = {
  name: 'minyuan',
}


type IOmitPerson = Omit<IPerson3, 'name'>
let omitPerson:IOmitPerson = {
  age: 18,
}
